Hasp-lock



I. V. THOMPSON.

HASP LOCK.

APPLICATION FILED MAYIB. 1917. 1,315,883. Patented Sept. 9,1919,

f 6 I I'M MM! J g5? i '1 HWHIIUHIII INVENTOR WITNESSES a]: V T@071919601} UNITED STATES .ATENT OFFICE.

JAMES V. THOMPSON, OF SPENCER,WEST VIRGINIA, ASSIGNOR OF ONE-HALF TOCHESTER A. CBISLIP, SI'ENCER, WEST VIRGIN IA.

HASPr-LOCK.

Specification of iiettersratent.

*atented Sept. 9, 1919.

a ncaumi filed. May 18, 1917. Serial No. 169,467.

hasps generally, and comprehends particu larly improvements in hasplocks.

This invention is directed more specifically to a hasp lock structureand is designed primarily as an improvement upon Patent 1,057,899,issued tome April 1,1913.

The primary object of the present invention resides inthe provision of anovel construction of locking means which will Securely fasten the hasplock against move ment and is manipulated to a released position throughthe medium of a key,consequently preventing any unauthorized person fromgaining entrance to the structure or dwelling to which the hasp lock isconnected without possessing the proper key.

A still. further object of the present invention is the prowision of ahasp lock, which is extremely simple in construction, durable, reliableand efficient in its purpose, inexpensive to manufacture, and whereinthe pivot bolt is provided with a squared shank for holding the sameagainst rotary movement with respect to the hasp.

l'Vith the above and other objects in view, the invention consists inthe novel features,

details of construction and combination of.

acters of reference refer to corresponding" parts in the several views,the hasp is denoted by the characterfi having formed in its inner end aneye (5 through which passed astaple 7 forwstationarily mounting thehaspin a door or door frame,as is obvious. In the opposite end of the hasp Iprovide anelongated slot 8 for .the detachable engagement thereof with asecond staple forming a keeper 9 which, in event of the staple 7 beingsecured to the door, is fastened to the door frame in the ordinarywell-known manner.

The chief characteristic of this invention, aside from the improved typeof locking means, to be hereinafter referred to, use is made of a, noveltype of pivot bolt denoted by the character 10, for swinginglysupporting uponthe hasp 5 a liasp hook 11 provided with a doubled hookedend 12 ada ted for engagement in the keeper 9. To t is end,

. the pivot bolt embodies a circular head 13 and a shank 14:, the shankfor a portion of its length being substantially of circular form incross section, while the remaining portion of the shank and to the freeend thereof is rectangular in cross section, denoted by the character15, and adapted to he projected through the squared opening 16 of thehasp for holding the locking bolt to the hasp against any accidentalrotation. The circular portion of the shank is indicated by thecharacter- 17 and has formed in its outer periphery a recess 18, thepose of which will be hereinafter more fully set forth as thedescription of the invention is proceeded with.

The pivot end of the hasp hook is provi ded on the inner face thereofwith a socket 15) of substantially circular form and encircling theopening 20 through which the pivot bolt 10 is projected for swinginglysupporting the hasp hook to the hasp. The locking member indicated bythe character 21 is here shown as constituting a dog pivoted as at 22 inthe socket 19 and the spur end 23 of the dog is automatically throwninto locked engagement with the recess 18 of the portion 17 of saidpivot bolt through the medium; of a V-shaped leaf spring 24 securedadjacent the shoulder 25 as at 26. Obviously, from Fig. 3 of thedrawing, the pivot denoted by the character 22, is projected through thelower end of the locking member 21 and positioned axially or in spacedparallelism with the circular shank 14 of the pivot bolt, and by theprovision of the gencaved face 28 of the pivot being disposed inconfronting relation with the shank 14, not only facilitates theexpeditious operation of the pivoted locking member, but will furtherfacilitate the locking member in conforming with the contour of theshank 14 of the pivot bolt.

Provided in the head 13 of the pivotbolt is a key-hole 27 in which asuitable key, not

shown, is adapted to beinserted for releasing the pronged end 23 of thelocking dog I from the pivot bolt, and thereby moving the bolt out ofengagement with the notch 18 so that the said hasp hook can be swung ina direction for freeing or releasing the hasp. From the foregoingdescription, taken in connection with the accompanying drawing, theadvantages of construction and the method of operation will be readilyapparent to those skilled in the art to which the in Copies 011111:patent may be obtained for formed with a shank of circular form in.

cross section provided in the outer peri hery thereof with a notch ofright angu ar formation, a hasp hook provided in its inner end with acircular opening through which thesha-nk of the pivot bolt projects anda portion of the wall of the opening being cut out to provide a socket,a spring pressed locking member mounted in the socket, a pivot passingthrough the lower end of the locking member and arranged axially of theshank of the pivot, the inner face of the locking member being concavedto conform to the contour of the shank of the pivot bolt and adapted tobe retracted by a key, the formation of said notch permitting the key tostop in alinement with the insertion point of the latter.

In testimony whereof I afiix my signature.

JAMES V. THOMPSON.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.?

